Pith Number

pith:HZPGEPVY

pith:2019:HZPGEPVY2WM3OK6GZUQEFEOF4T

not attested not anchored not stored refs pending

The Hyperboloidal Numerical Evolution of a Good-Bad-Ugly Wave Equation

Alex Va\~n\'o-Vi\~nuales, David Hilditch, Edgar Gasperin, Shalabh Gautam

arxiv:1909.11749 v1 · 2019-09-25 · gr-qc

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HZPGEPVY2WM3OK6GZUQEFEOF4T}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Cited by

1 paper in Pith

3d Summation-by-Parts scheme for Linear Wave Equations on Hyperboloidal Slices

Receipt and verification

First computed	2026-07-05T00:36:37.995632Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3e5e623eb8d599b72bc6cd204291c5e4e18698d70935aa5bb114b4922c9f139a

Aliases

arxiv: 1909.11749 · arxiv_version: 1909.11749v1 · doi: 10.48550/arxiv.1909.11749 · pith_short_12: HZPGEPVY2WM3 · pith_short_16: HZPGEPVY2WM3OK6G · pith_short_8: HZPGEPVY

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/HZPGEPVY2WM3OK6GZUQEFEOF4T \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 3e5e623eb8d599b72bc6cd204291c5e4e18698d70935aa5bb114b4922c9f139a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "14be3fc703b6a32b8a6c42e4b801a787f94df377d3525eb4c5458afecabfde2a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2019-09-25T20:23:51Z",
    "title_canon_sha256": "4a2abaca19899a633d49e7b614e62a5b0779bcf570516accc50518907fc9d646"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.11749",
    "kind": "arxiv",
    "version": 1
  }
}